Rubidium

Rubidium or Rb

• atomic number is 37

• atomic weight is 85.4678

• color is Silver

• state at 298.15°k is Solid

• classification is Metallic

• date of discovery is 1861

• density kg/m^3 is 1530

• melting point is 312.79

• boiling point is 1837 K

• group is Alkali Metal

• Number of neutron is 48